I am keen to set up an inexpensive sdr programme using a dongle and antenna. I am limited computer literate, apparently. This makes computer use for me tricky. Can I get the user friendly version from you people in radio land ? I bought an SDR book but found it difficult to locate the information I needed. I just want to set up a small operation for monitoring HF and
SW bands.
I am looking for advice here and will appreciate any help you can give me. TIA.

You specifically mention SW and HF, so the cheap RTL dongles wont cut the mustard, even those modified to work on the lower frequencies.
Take a look at the SDR play (RSP1A) , sub £100 new, comes with good software that's easy to install and use, and is well supported.
There may be others, but I can vouch that one will do the job.

Try some of the online SDR services which need no setup on your part but does give you a flavour of how to navigate your way around SDR software. Once that's ticked off then, as Tigersaw rightly says head for an SDRplay device.